Many places still have the Kanger Unitanks, and for a variety of prices. Some are very high IMO, and others are much less. However, on all of those websites...I've never seen it called a Kanger Protank Unitank. Even on the coil boxes that can be used for several different Kanger tanks and versions of them...it lists Kanger Unitank and Kanger Protank as 2 separate tanks.